Apparatus for extracting gas and oil from waste



Nov. 27, 1928.

A. NAERT APPARATUS FOR EXTRACTING GAS AND OIL FROM WASTE Filed 001;- 1926 il /Q erZ,

Patented Nov. 27, 1928.

ALEXIS NAERT' OF DETROIT, MICHIGAN.

APPARATUS FOR EXTRACTING GAS AND ZCIL FROM WASTE.

Application filed October 7, 1926. Serial No. 140,127.

This invention relates to and has for one of its objects to provide a novel, simple and highly efficient apparatus for recovering gas and oil from wood shavings, waste paper and the like. 7 V

The invention consists of the novel construction, combination and arrangement of parts hereinafter fully described and claimed, and illustrated in the accompanying drawing, wherein:

Figure 1 is a view partly in elevation and partly in vertical section of the apparatus,

and I Figure 2 is a detail view in front elevation of the furnace of the apparatus.

The apparatus comprises a retort 1 which is cylindrical and mounted in a vertical position upon a base 2. The base 2 is of hollow frusto-conical formation, and is provided at its upper end with a horizontal annular flange 3 and a vertical annular flange l. The flange 3 is located within the base 2, and the flange 4 extends from the base above the flange 3. The lower end of the retort 1 rests upon the flange 3 within the flange 4. The base 2 constitutes a furnace for the retort 1, and is provided with a grate 5. The doors for the combustion chamber 6 and ash pit 7 of the furnace are designated 6* and 7, respectively. Vertical. flues 8 and 9 are arranged within the retort 1. Thelower ends of the flues 8 and 9 extend through the bottom of the retort 1 and communicate with the combustion chamber 6.- The upper ends of the flues 8 and 9 are connected to and communicate with a horizontal flue 10 which is spaced from the top of the retort 1 and extends through a side of the retort. A smoke stack 11 extends from the outer end of the flue 10. The retort 1 is charged through an opening 12 in the top thereof, and said opening is closed by a plug 13. At its lower end the retort 1 is provided with a. clean out opening 14 which is closed by a door 15. The door 15 is supported by a hinge 16, and is secured in closed position by a latch 17 and a pressure screw 18. The pressure screw 18 has threaded engagement with a bar 19 which extends across the door 15 and hasits ends removably engaged with angular elements 20 carried by the retort 1. A hand wheel 21 is fixed to the pressure screw 18. and the latter contacts with the door 15. WVhen the pressure screw 18 is turned in one direction, it forces the door 15 bodily. into and holds it in contact with the retort 1 so as to effectively seal the clean out opening 11.

Vile-n it is desired to open the door 15, the

pressure screw 18 is turned in the opposite direction, the bar 19 is then moved on the pressure screw so as to disengage it from the hooks 20, and thereafter the latch 17 is moved out of engagement with its keeper The apparatus also comprises a tank 23 which is provided in its top with a filling opening 24- and adjacent its lower end with a drain cock 25. The filling opening 24 is closed by a plug 26. The tank 23 is adapted to contain a quantity of water, the normal level of which is indicated by the broken line 27. A pipe 28 establishes communication between the retort 1 and tank 23. It is connected at one end to the upper end of the retort andat the other to a side of the tank below the surface of the water therein. A pipe 29 communicates with the upper end of the tank 23, and this pipe and the pipe 28 are provided with cut-off cocks 30 and 31, respectively.

In practice, the waste material to be treated, such as yellow pine shavings, newspapers or the like, is placed in the retort 1 through the opening 12 and any suitable means may be employed for forcing the waste material into the retort. After the retort 1 has been charged, the opening 12 is closed by the plug 13, and a fire built in the furnace 2. The products of combustion passing through the fines 8, 9 and 10 on their way to the smoke stack 11, result in the production of a gas from the waste material in the retort 1, and this gas is conducted from the retort to the tank 23 by the pipe 28. As the tank 23 contains water, and as the gas discharges into the tank below the surface of the water, the oil therein is removed from the gas. The gas passes out of the tank 23 by way of the pipe 29, and may be used for illuminating and other purposes and if desired as the fuel for the furnace 2. The cock 25 permits the contents of the tank 23 to be drained from time to time.

I have found by'analysis that the oil above referred to contains turpentine and other valuable products.

lVhat is claimed is An apparatus of the character set forth, comprising a vertical retort, a hollow base for the retort and having a combustion chamber, a flue arranged horizontally within the upper end of the retort, the flue being spaced from the top of the retort and passing through a side thereof, a smoke stack extending from the outer end of the flue, fines arranged vertically Within the retort and communicating at their upper ends With the horizontal fine and having their lower ends extended through 5 the bottom of the retort into the combustion chamber, a tank adapted to contain Water and provided with a valved outlet, a pipe connnunicating with the upper end of the retort and With the tank at about midway between the top and bottom Walls thereof, and a pipe communicating with the upper end of the tank.

In testimony whereof I atiix my signature.

ALEXIS NAERT. 

